<script setup>
import { ref, onMounted } from 'vue'
import {
  queryPageApi,
  queryDeptListApi,
  queryRoleListApi,
  addUserApi,
  queryUserInfoApi,
  updateUserApi,
  deleteUserApi
} from '@/api/user'
import { ElMessage, ElMessageBox } from 'element-plus'

// 查询参数
const queryParams = ref({
  name: '',
  phone: '',
  deptId: '',
  status: '',
  page: 1,
  pageSize: 10
})

// 表格数据
const userList = ref([])
const total = ref(0)
const deptList = ref([])
const roleList = ref([])
const selectedUsers = ref([])

// 表单相关
const userFormRef = ref()
const userForm = ref({
  username: '',
  name: '',
  phone: '',
  email: '',
  gender: '',
  status: '',
  deptId: '',
  roleId: '',
  image: '',
  remark: ''
})

// 对话框
const dialog = ref({
  title: '',
  visible: false
})

// 表单验证规则
const rules = ref({
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 2, max: 20, message: '长度在 2 到 20 个字符', trigger: 'blur' }
  ],
  name: [
    { required: true, message: '请输入姓名', trigger: 'blur' },
    { min: 2, max: 20, message: '长度在 2 到 20 个字符', trigger: 'blur' }
  ],
  phone: [
    { required: true, message: '请输入手机号', trigger: 'blur' },
    { pattern: /^1[3-9]\d{9}$/, message: '请输入正确的手机号', trigger: 'blur' }
  ],
  email: [
    { required: true, message: '请输入邮箱', trigger: 'blur' },
    { type: 'email', message: '请输入正确的邮箱地址', trigger: 'blur' },
    { min: 5, max: 50, message: '长度在 5 到 50 个字符', trigger: 'blur' }
  ],
  gender: [
    { required: true, message: '请选择性别', trigger: 'change' }
  ],
  status: [
    { required: true, message: '请选择状态', trigger: 'change' }
  ]
})

// 文件上传相关
const uploadAction = '/api/upload' // 根据实际接口调整
const uploadHeaders = {
  // 根据实际需要设置请求头
}

onMounted(() => {
  loadDeptList()
  loadRoleList()
  search()
})

// 加载部门列表
const loadDeptList = async () => {
  const result = await queryDeptListApi()
  if (result.code === 1) {
    deptList.value = result.data
  }
}

// 加载角色列表
const loadRoleList = async () => {
  const result = await queryRoleListApi()
  if (result.code === 1) {
    roleList.value = result.data
  }
}

// 查询按钮
const search = async () => {
  const result = await queryPageApi(queryParams.value)
  if (result.code === 1) {
    userList.value = result.data.rows
    total.value = result.data.total
  } else {
    ElMessage.error(result.msg || '查询失败')
  }
}

// 重置查询
const clear = () => {
  queryParams.value = {
    name: '',
    phone: '',
    deptId: '',
    status: '',
    page: 1,
    pageSize: 10
  }
  search()
}

// 分页大小改变
const handleSizeChange = (val) => {
  search()
}

// 页码改变
const handleCurrentChange = (val) => {
  search()
}

// 选择变化
const handleSelectionChange = (selection) => {
  selectedUsers.value = selection
}

// 添加用户按钮
const handleAdd = () => {
  dialog.value.title = '新增用户'
  dialog.value.visible = true
  userForm.value = {
    username: '',
    name: '',
    phone: '',
    email: '',
    gender: '',
    status: '',
    deptId: '',
    roleId: '',
    image: '',
    remark: ''
  }
  if (userFormRef.value) {
    userFormRef.value.resetFields()
  }
}

// 修改用户按钮
const handleEdit = async (id) => {
  const result = await queryUserInfoApi(id)
  if (result.code === 1) {
    userForm.value = result.data
    dialog.value.title = '修改用户'
    dialog.value.visible = true
    if (userFormRef.value) {
      userFormRef.value.resetFields()
    }
  } else {
    ElMessage.error(result.msg)
  }
}

// 删除用户按钮
const handleDelete = async (id) => {
  ElMessageBox.confirm('您确认要删除该用户吗？', '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async () => {
    const result = await deleteUserApi(id)
    if (result.code === 1) {
      ElMessage.success('删除成功')
      search()
    } else {
      ElMessage.error(result.msg || '删除失败')
    }
  })
}

// 批量删除按钮
const handleBatchDelete = () => {
  if (selectedUsers.value.length === 0) {
    ElMessage.warning('请选择要删除的用户')
    return
  }

  const ids = selectedUsers.value.map(user => user.id).join(',')
  ElMessageBox.confirm(`确认要删除选中的 ${selectedUsers.value.length} 个用户吗？`, '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async () => {
    const result = await deleteUserApi(ids)
    if (result.code === 1) {
      ElMessage.success('批量删除成功')
      search()
    } else {
      ElMessage.error(result.msg || '批量删除失败')
    }
  })
}

// 保存按钮
const save = async () => {
  userFormRef.value.validate(async (valid) => {
    if (!valid) return
    let result
    if (userForm.value.id) {
      // 修改用户
      result = await updateUserApi(userForm.value)
    } else {
      // 添加用户
      result = await addUserApi(userForm.value)
    }

    if (result.code === 1) {
      dialog.value.visible = false
      ElMessage.success(userForm.value.id ? '修改成功' : '添加成功')
      search()
    } else {
      ElMessage.error(result.msg || '操作失败')
    }
  })
}

// 头像上传成功
const handleAvatarSuccess = (response, file) => {
  if (response.code === 1) {
    userForm.value.image = response.data
    ElMessage.success('头像上传成功')
  } else {
    ElMessage.error(response.msg || '头像上传失败')
  }
}

// 头像上传前验证
const beforeAvatarUpload = (file) => {
  const isJPG = file.type === 'image/jpeg' || file.type === 'image/jpg'
  const isPNG = file.type === 'image/png'
  const isLt2M = file.size / 1024 / 1024 < 2

  if (!isJPG && !isPNG) {
    ElMessage.error('头像只能是 JPG/PNG 格式!')
    return false
  }
  if (!isLt2M) {
    ElMessage.error('头像大小不能超过 2MB!')
    return false
  }
  return true
}
</script>

<template>
  <div class="user">
    <!-- 搜索区域 -->
    <el-form :inline="true" :model="queryParams" ref="queryForm" class="search-form">
      <el-form-item label="姓名">
        <el-input v-model="queryParams.name" placeholder="请输入姓名"/>
      </el-form-item>
      <el-form-item label="手机号">
        <el-input v-model="queryParams.phone" placeholder="请输入手机号"/>
      </el-form-item>
      <el-form-item label="部门">
        <el-select v-model="queryParams.deptId" placeholder="请选择" clearable>
          <el-option  v-for="dept in deptList"  :key="dept.id"  :label="dept.name"  :value="dept.id" />
        </el-select>
      </el-form-item>
      <el-form-item label="状态">
        <el-select v-model="queryParams.status" placeholder="请选择" clearable>
          <el-option label="正常" :value="1" />
          <el-option label="停用" :value="0" />
        </el-select>
      </el-form-item>
      <el-form-item class="search-buttons">
        <el-button type="primary" @click="search"><el-icon><Search /></el-icon>搜索</el-button>
        <el-button type="info" @click="clear"><el-icon><Refresh /></el-icon>清空</el-button>
      </el-form-item>
    </el-form>

    <!-- 操作按钮区域 -->
    <div class="operation-area">
      <el-button type="primary" @click="handleAdd"><el-icon><Plus /></el-icon>添加用户</el-button>
      <el-button type="danger" @click="handleBatchDelete"><el-icon><Delete /></el-icon>批量删除</el-button>
    </div>

    <!-- 表格区域 -->
    <el-table :data="userList" style="width: 100%" border @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column prop="name" label="姓名" width="150" align="center" />
      <el-table-column prop="username" label="用户名" width="150" align="center" />
      <el-table-column label="头像" width="120" align="center">
        <template #default="scope">
          <el-avatar :size="35" :src="scope.row.image" :icon="UserFilled"/>
        </template>
      </el-table-column>
      <el-table-column prop="deptName" label="部门" width="150" align="center" />
      <el-table-column prop="roleName" label="角色" width="150" align="center" />
      <el-table-column prop="phone" label="手机号" width="120" align="center" />
      <el-table-column prop="status" label="状态" width="120" align="center">
        <template #default="scope">
          <el-tag :type="scope.row.status === 1 ? 'success' : 'danger'">
            {{ scope.row.status === 1 ? '正常' : '停用' }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column prop="updateTime" label="最后操作时间" width="180" align="center" />
      <el-table-column label="操作" align="center">
        <template #default="scope">
          <el-button type="primary" link @click="handleEdit(scope.row.id)"><el-icon><Edit /></el-icon>修改</el-button>
          <el-button type="danger" link @click="handleDelete(scope.row.id)"><el-icon><Delete /></el-icon>删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页区域 -->
    <div class="pagination">
      <el-pagination
          v-model:current-page="queryParams.page"
          v-model:page-size="queryParams.pageSize"
          :page-sizes="[10, 20, 30, 40, 50]"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
      />
    </div>

    <!-- 添加/修改用户对话框 -->
    <el-dialog :title="dialog.title" v-model="dialog.visible" width="800px" class="user-dialog">
      <el-form :model="userForm" ref="userFormRef" :rules="rules" label-width="80px" class="user-form">
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="用户名" prop="username">
              <el-input v-model="userForm.username" placeholder="请输入用户名" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="姓名" prop="name">
              <el-input v-model="userForm.name" placeholder="请输入姓名" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="手机号" prop="phone">
              <el-input v-model="userForm.phone" placeholder="请输入手机号" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="userForm.email" placeholder="请输入邮箱" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="性别" prop="gender">
              <el-select v-model="userForm.gender" placeholder="请选择" style="width: 100%">
                <el-option label="男" :value="1" />
                <el-option label="女" :value="2" />
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="状态" prop="status">
              <el-select v-model="userForm.status" placeholder="请选择" style="width: 100%">
                <el-option label="正常" :value="1" />
                <el-option label="停用" :value="0" />
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="部门" prop="deptId">
              <el-select v-model="userForm.deptId" placeholder="请选择" style="width: 100%">
                <el-option  v-for="dept in deptList" :key="dept.id" :label="dept.name" :value="dept.id" />
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="角色" prop="roleId">
              <el-select v-model="userForm.roleId" placeholder="请选择" style="width: 100%">
                <el-option v-for="role in roleList" :key="role.id"  :label="role.name" :value="role.id" />
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
        <el-form-item label="头像">
          <el-upload
              class="avatar-uploader"
              :action="uploadAction"
              :show-file-list="false"
              :on-success="handleAvatarSuccess"
              :before-upload="beforeAvatarUpload"
              :headers="uploadHeaders"
              name="image"
          >
            <img v-if="userForm.image" :src="userForm.image" class="avatar" />
            <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
          </el-upload>
          <div class="upload-tip">图片上传,支持扩展名: .png/.jpg/.jpeg 大小限制: 2M</div>
        </el-form-item>
        <el-form-item label="备注说明" prop="remark">
          <el-input v-model="userForm.remark" type="textarea" :rows="3" placeholder="请输入用户的备注信息,最多200字" maxlength="200" show-word-limit/>
        </el-form-item>
      </el-form>
      <template #footer>
        <el-button @click="dialog.visible = false"><el-icon><Close /></el-icon>取 消</el-button>
        <el-button type="primary" @click="save"><el-icon><Check /></el-icon>确 定</el-button>
      </template>
    </el-dialog>

  </div>
</template>

<style scoped>
.user {
  padding: 20px;
  background-color: #fff;
  min-height: 100%;
  border-radius: 8px;
}

.operation-area {
  margin: 20px 0;
}

.search-form {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.search-form :deep(.el-form-item) {
  margin-right: 20px;
  margin-bottom: 10px;
  min-width: 250px;
}

.search-buttons {
  margin-left: auto !important;
  min-width: auto !important;
}

.pagination {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
}

:deep(.el-button .el-icon) {
  margin-right: 4px;
}

:deep(.el-table .el-table__cell) {
  padding: 8px 0;
}

/* 用户对话框样式 */
:deep(.user-dialog .el-dialog__body) {
  padding-top: 30px;
}

.user-form {
  width: 90%;
  margin: 0 auto;
}

/* 头像上传样式 */
.avatar-uploader {
  text-align: center;
}

.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 80px;
  height: 80px;
  text-align: center;
  line-height: 80px;
  border: #d8d4d4 solid 1px;
  border-radius: 10%;
}

.avatar {
  width: 80px;
  height: 80px;
  display: block;
  border: #d8d4d4 solid 1px;
  border-radius: 10%;
}

.upload-tip {
  font-size: 12px;
  color: #999;
  margin-top: 8px;
  line-height: 1.4;
}
</style>
